Means for lubricating shaft-bearings



(No Model.)

0. F. 00 i I MEANS FOR LUBRIGATIN APT BEARINGS.

N0 603,260. Patented May 3, 1898.

In! 7% 6 v V v 1 j fier UNITE STATES OREN F. COOK, or SAN JOSE, CALIFORNIA,

MEANS FOR LUBRICATI SPECIFICATION forming part of Letters Patent No. 603,260, dated. May 3, 1898.

Application filed October 1 2, 1897- To all whom it may concern.-

Be it known that I, OREN F. COOK, a citizen of the United States, residing at San J os, in the county of Santa Clara and State of California, have invented a new and useful Means for Lubricating Shaft-Bearings, of which the following is a specification.

, This invention relates to shaft-bearings,

its object being to so improve theconstruction thereof that with the aid of a force-pump and suitable pipe connections between the pump, the bearing, and a supply of lubricant I am enabled to introduce the lubricant into the bearing below the shaft under a pressure sufficient to elevate the shaft out of metallic contact with the lower section of the bearing and maintain a constant circulation of lubricant through the bearin g around the shaft,

and thus form a thin film of lubricant between the metal of the shaft. and the bearing, thereby preventing actual metallic contact between them when the shaft is revolved.

The invention also contemplates provision. for the discharge of the lubricant out through the cap of the bearing with sufficient freedom to prevent downward pressure on the shaft and the return of of supply. I also provide suitable means to prevent the escape of the lubricant at the ends of the bearing, and thereby maintain a constant upward pressure upon the shaft and also prevent the waste of the lubricant.

The invention will be fully described in the following description and its novel features clearly defined in the subjoined claim.

In the drawings, Figure 1 is a side elevation, partly in section, of a shaft and a bearing embodying my invention, together with the force-pump and pipe connections. 'Fig. 2 is a vertical transverse section through the shaft and bearing.

Similar reference-numerals indicate similar 7 ricant will be compelled to rmits way such lubricant to the source g.-

PATENT} OFFICE.

NG SHAFT-BEARINGS.

Serial No. 654,967. (No man.)

4 to the force-pump 7, the piston-rod of which I I is connected to the strap 8 of an eccentric 9 on the shaft 1. A tank or reservoir-10 is provided to contain a supply of lubricant, anda pipe 11 leads from the tank to the pump.

12 indicates a pipe leading fmmighe chai'n ber 5 to the tank and serves to return th lubricant from the chamber to the tank. This pipe will be of somewhat greater diameter than the supply-pipe in order that the lubri cant may escape freely from the chamber i 5 into which it will be forced under pressureand thus avoid downward pressure on the 3 1 shaft; The chambers 4 and 5 have their fl greatest length longitudinally of the shaft and are of a materially less width,than1the' diameter of the shaft, so as to be open only tof' the shaft and to the supply and discharge 7 pipes, respectively. f A stuffing-box 13 is provided at ,each end of the bearing to receive a suitable packin 14, and a follower 15 is adjustable in the usual manner to compress the packing and thereby 75 prevent the escape of the lubricant at the ends f of thebe'aring. By this arran t th 1gb";

around the shaft from the lower to th upper V chamber and thence back to the res'erviziggb through the pipe 12. V v r From the foregoing description it will befi obvious that when the pump is operated the lubricant will accumulate in the lower cham v 'ber under sufficient pressure to lift the shaft out of metallic contact with the lower section r 'of the bearing and will then be forced up around the shaft into the upper chamber, from which it will be free to escape to the tank. 1 A thin film of lubricant will therefore 7 be constantly maintained between the metal of the shaft and the bearing as long as the pump is operated, and there will be;- very little friction on the shaft in the bearing to re;

parts in both figures.

1 indicates the shaft, 2 the lower section of the bearing, and 3 the upper-or cap section thereof. Each section is provided .interiorly with a recess or chamber, the one in the lower chamber being indicated by 4 and that in the upper chamber by 5, and these chambers are of substantially equal dimensions and are in vertical alinement with each other.

tard its lubricant. It is also obvious that'by' the use of the stuffing-boxes the lubricant'is J a prevented from escaping from the ends of the I bearing, and consequently the entire pressure of the lubricant is exerted in an upward direction. v

I have illustrated my invention as applied to a single bearing; but it is obvious that'adjacent bearings may be supplied with lubri l i 6 indicates a pipe leading from the chamber cant from the same pump by having branch pipes lead from the supply and return pipes eter of the latter, whereby the shaft will form to the several bearings. a loose closure for the open sides of said cham- It will be understood that changes in the bers or pockets, an oil-inlet pipe arranged to form, proportion, and the minor details of deliver oil under pressure to the lower of said 20 5 construction may be resorted to without dechambers or pockets, and an oil-outlet pipe parting from the spirit or sacrificing any of communicating with the upper of said chamthe advantages of this invention. bers or pockets and of a greater diameter than Having thus described the invention,what said inlet-pipe, substantially as set forth. I claim is- In testimony that I claim the foregoing as 25 IQ The combination with a horizontal shaft, of my own I have hereto aflixed my signature in p a bearing-box provided at its ends with stuffthe presence of two Witnesses. ing-boxes and having formed respectively T in the upper and lower sides of its bore, and OREL COOK 3 in the same vertical plane, oil chambers or lVitnesses:

r5. pockets disposed longitudinally of the shaft C. H. SIMONDS, is? e and of a materially less Width than the diain- JOHN VARCOE. 

